CN102042375A - Transmission mechanism for converting rotation into linear motion - Google Patents

Transmission mechanism for converting rotation into linear motion Download PDF

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Publication number
CN102042375A
CN102042375A CN2009101106411A CN200910110641A CN102042375A CN 102042375 A CN102042375 A CN 102042375A CN 2009101106411 A CN2009101106411 A CN 2009101106411A CN 200910110641 A CN200910110641 A CN 200910110641A CN 102042375 A CN102042375 A CN 102042375A
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CN
China
Prior art keywords
connecting rod
bearing
point
rotation
worm gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2009101106411A
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Chinese (zh)
Inventor
邱光
张利华
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SHENZHEN RILAND INDUSTRY Co Ltd
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SHENZHEN RILAND INDUSTRY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by SHENZHEN RILAND INDUSTRY Co Ltd filed Critical SHENZHEN RILAND INDUSTRY Co Ltd
Priority to CN2009101106411A priority Critical patent/CN102042375A/en
Publication of CN102042375A publication Critical patent/CN102042375A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a transmission mechanism for converting rotation into linear motion, which comprises a rotary member (OB) and a connecting rod (BA). The rotary member is hinged with the connecting rod, particularly the transmission mechanism further comprises a support (40), wherein the support and the connecting rod realize the connection of a rotary pair and a movable pair; when the rotary member reciprocates around a riveting centre (point O) at the root part under the drive of a power device in a corner range of 180 degrees by using a connection line of the central point (i.e. the point O) and the central point of the support as a corner bisector, the connecting rod hinged with a front end (point B) of the rotary member does reciprocating swinging and does axially reciprocating linear motion. The other end (point A) of the connecting rod forms the linear reciprocation motion. The invention realizes a transmission function of converting mechanical rotation into linear displacement, has the advantages of simple structure, stable performance and low performance requirements on a motor, can ensure the accuracy of the reciprocating linear motion of the end part of the connecting rod, and is particularly suitable for portable equipment which needs to carry out linear reciprocation operation.

Description

Rotation is converted into straight-line driving mechanism
[technical field]
The present invention relates to a kind ofly be connected with reciprocal element by connecting rod, use lever, connecting rod or cam be used to rotatablely move and the mechanism of reciprocating mutual conversion.
[background technique]
The straight-line driving mechanism that rotation is converted into of prior art comprises gas, liquid piston type and nut screw mandrel formula etc., the transmission device of this class form that just is to use as Chinese patent 2007201125318 " knife rack driving mechanism that is used for incontinence trousers reciprocating welding system "; What Chinese patent 200710160083.0 " drive unit of soldering installation " used is nut screw mandrel formula transmission device, and Chinese patent 02141406.8 " automatic welding gun electrode apparatus for shaping " use is planet wheel straight line transmission drive, the driving mechanism that uses crankshaft connecting rod type is also arranged, as Chinese patent 86104622 " a kind of rotation becomes straight-line mechanism " and Chinese patent 2007200275758 " crankshaft-linking rod drive mechanism that length of connecting rod is variable and punch press main transmission ".Gas, liquid piston type driving mechanism are because of wanting the working pressure source, be not suitable in portable equipment, adopting, and the kind of drive of other prior art mechanical type rotation motion linear reciprocating motions, complex structure, motor usefulness conversion ratio are lower, and also have each position mechanism of medium tache coefficient of stability more, entire mechanism low or to motor performance shortcoming such as have relatively high expectations.
[summary of the invention]
The technical problem to be solved in the present invention is to avoid the deficiencies in the prior art part and provides a kind of simple in structure, stable performance, low to the motor performance requirement, be specially adapted to portable equipment, can guarantee that a kind of of linear reciprocating motion precision is converted into straight-line driving mechanism with rotation.
The technological scheme that the present invention solve the technical problem employing is: a kind of " rotation is converted into straight-line driving mechanism " is provided, comprises frame, revolving meber and connecting rod, the root of frame and revolving meber articulates; The front end of revolving meber and the afterbody of connecting rod are hinged, especially also comprise place's bearing, and it is the sliding pair binding of immovable point that described connecting rod and this bearing are formed around the rotary pair binding of this bearing rotation with this bearing.
Described pivot joint means that one (revolving meber) rotates the fixing rotary pair binding of another part (frame) in two members.
When in 180 ° of angle ranges that with this central point and bearing fulcrum line are the corner bisectrix, doing reciprocal rotation around its root center that articulates under the driving of revolving meber at power plant, make reciprocally swinging simultaneously and make axial linear reciprocating motion around described bearing along this bearing with the connecting rod that the revolving meber front end is hinged.Because of this bearing and connecting rod are that rotary pair links, can support the swing of connecting rod neatly, because of this bearing and connecting rod are the sliding pair bindings, connecting rod is smooth to the axial linear movement of this bearing again.At this moment, link rod head forms the straight reciprocating motion perpendicular to revolving meber fulcrum and bearing central point line, and this link rod head can be installed various workpieces (platform, frame) as working part, to carry out the work of required straight reciprocating motion.
The invention has the beneficial effects as follows: the transmission agency of realizing mechanical rotation commentaries on classics straight-line displacement, simple in structure, stable performance, low to the performance requirement of motor, can guarantee the linear reciprocating motion precision of interlinking lever end, be specially adapted to carry out the portable set of linear reciprocation operation.
[description of drawings]
Fig. 1 is the present invention's principle sketch that " rotation is converted into straight-line driving mechanism ".
Fig. 2 is that the integral shaft of the preferred embodiment of the present invention " portable no dead angle automatic welding machine " is surveyed perspective view.
Fig. 3 is the schematic top plan view of described preferred embodiment.
Fig. 4 is the decomposing state axonometric projection schematic representation of described preferred embodiment drive part.
Fig. 5 is the decomposing state axonometric projection schematic representation of described preferred embodiment complete machine.
Among the figure: 1 is regulating handle, 2 is the regulating handle packing ring, 3 is the slide block screw rod, 4 for regulating front screen, 5 prop up for silver-colored steel, 6 for regulating slide unit one, 7 is slide unit, 8 is welding gun clamping reservation connecting plate, 9 is the reservation of welding gun clamping, 10 are the welding gun folder, 11 is welding gun tong handle, 12 is slide block fixed base bakelite cover, 13 is the slide block fixed base, 14 is connecting rod, 141 are connecting rod protrusion axle, 16 is light sign indicating number induction coil, 18 is light sign indicating number plate, 19 is light sign indicating number plate fixed base, 20 is bearing, 21 is the worm screw fixed base, 22 is frame, 23 is cross slid platform, 28 is bent axle, 281 is crank, 282 is bolt, 29 is bearing, 30 is power plant, 33 is bearing, 34 is worm screw, 35 is worm gear, 36 is motor, 37 is the motor compact heap, 38 is worm-wheel shaft, 40 is bearing, 45 is linear bearing, 451 is chute, 452 is guide rail, 453 is screw, 47 is the linear axis bearing, 471 is pivot, 472 is bolt.
[embodiment]
The present invention is described in further detail below in conjunction with each accompanying drawing.
Referring to accompanying drawing 1, the present invention " is converted into straight-line driving mechanism with rotation " and comprises frame 22, revolving meber OB and connecting rod BA, frame 22 articulates with the root O point of revolving meber OB, the afterbody B of the front end of revolving meber OB and connecting rod BA is point articulated, especially also comprise place's bearing 40, it is the sliding pair binding of immovable point that connecting rod BA and this bearing 40 are formed around the rotary pair binding of this bearing rotation with this bearing, when articulating center O point when doing back and forth to rotate around its root in 180 ° of angle ranges that with this central point and bearing 40 central point lines are the corner bisectrix under the driving of revolving meber OB at power plant, the connecting rod BA point articulated with revolving meber OB front end B does to swing (reciprocal rotation) simultaneously and makes axial linear reciprocating motion along this bearing around described bearing 40; At this moment, the head A of connecting rod BA forms perpendicular to above-mentioned line and by the straight reciprocating motion of this line elongation line five equilibrium, and its movement locus is straight line 1AA '.
The motor end position of double dot dash line A ' B ' expression connecting rod AB head A among the figure.
Member that described revolving meber OB can be a single component or the rigid member of forming by a plurality of parts.This revolving meber OB can be rod member or roulette wheel (for example worm gear), and the wheel shaft of this roulette wheel and frame articulate, and the afterbody B of the spoke of this roulette wheel and described connecting rod BA is point articulated.
Referring to accompanying drawing 2 to 5, in the automatic welding machine of the portable no dead angle of the preferred embodiments of the present invention, described revolving meber OB comprises worm gear 35 and 28 two parts of bent axle, and the root of bent axle 28 is fixed on the spoke of worm gear 35, form rigid member with worm gear, the afterbody of the front end of bent axle 28 and connecting rod 14 is hinged.
In the automatic welding machine of the portable no dead angle of the preferred embodiments of the present invention, described bearing 40 comprises linear bearing 45 and linear axis bearing 47, described linear bearing 45 comprises chute 451 and guide rail 452 again, guide rail 452 is fixed on the described connecting rod 14 by bolt 453, guide rail 452 is formed sliding pair with chute 451 and is linked, and is equivalent to connecting rod 14 and links with chute 451 composition sliding pair.This chute 451 is loaded on the linear axis bearing 47 by bolt 472, and linear axis bearing 47 articulates by the platform of its pivot 471 with frame 22, and the platform composition rotary pair that is equivalent to connecting rod 14 and frame 22 links.Realize that thus described connecting rod 14 can be that axis swings with pivot 471, can realize straight line motion to slide in the chute 451 on the linear axis bearing 47 of guide rail 452 on the platform that is articulated in frame 22 that is fixed in self again.
In this embodiment, also comprise power plant 30, these power plant comprise motor 36, worm screw 34 and worm gear 35, and motor 36 is connected with worm screw 34, worm screw 34 and worm gear 35 engagements.Bent axle 28 roots are fixed in by bolt 282 on the spoke of worm gear 35, form with worm gear to be rigidly connected, and rotate with worm gear; The afterbody of bent axle 28 front ends and connecting rod 14 is hinged by crank 281, cross slid platform 23 is installed on the connecting rod 14, the gun rack of being equipped with by regulating handle 1, regulating handle packing ring 2, slide block screw rod 3 on the cross slid platform 23, regulating that front screen 4, silver-colored steel prop up 5, regulate slide unit 6, slide unit 7, welding gun clamping reservation connecting plate 8, welding gun clamping reservation 9, welding gun folder 10, welding gun tong handle 11 etc. being formed presss from both sides on 10 at the welding gun of this gun rack welding gun is installed.
In another preferred embodiment of the present invention, there is a smooth plate stacking device to be used to realize the welding of various modes, the pivot 471 that light sign indicating number plate fixed base 19 in linear axis bearing 47 and the light plate stacking device is assembled into linear axis bearing 47 is the pivot joint that rotate in the center of circle, light sign indicating number plate fixed base 19 is fixed on the platform of frame 22, be equivalent to linear axis bearing 47 and articulate, be equivalent to connecting rod 14 and articulate with frame 22 with frame 22.
When motor 36 starts, driving worm screw 34 rotates, worm screw 34 drives worm gear 35 and rotates, worm gear 35 drives bent axle 28 and rotates, connecting rod 14 is as the bar thick stick, under the drive of bent axle 28, be Point of Strength with pivot 471 axle center of linear axis bearing 47 with crank 281 axle center be that fulcrum rotates, make axial linear reciprocating motion by the guide rail 452 of linear bearing 45 along chute 451 simultaneously, when worm gear rotates is that the head of connecting rod 14 forms perpendicular to above-mentioned worm gear corner bisectrix and by the straight reciprocating motion of this corner bisectrix five equilibrium when swinging (doing back and forth to rotate) in 180 ° of angle ranges that are the corner bisectrix with this worm gear central point and pivot 471 AnchorPoint lines.Its movement locus is as the welding gun mobile route of the portable no dead angle of preferred embodiment of the present invention automatic welding machine, welding gun is welded by the straight line of setting, end at ' dead angle ' in stage thereby avoid welding initial sum, reach that no dead angle is welded automatically and the purpose that need not artificial repair welding.

Claims (7)

1. one kind is converted into straight-line driving mechanism with rotation, comprises frame (22), revolving meber (OB) and connecting rod (BA), and frame (22) articulates with the root (O point) of revolving meber (OB); The afterbody of the front end of revolving meber (OB) and connecting rod (BA) (B point) is hinged, it is characterized in that:
Also comprise place's bearing (40), connecting rod (BA) is the sliding pair binding of immovable point with this bearing (40) composition around the rotary pair binding of this bearing rotation with this bearing; When articulating center (O point) when in 180 ° of angle ranges that with this central point (O point) and bearing (40) fulcrum line are the corner bisectrix, doing back and forth rotation around its root under the driving of revolving meber (OB) at power plant, make reciprocally swinging simultaneously and make axial linear reciprocating motion around described bearing (40) along this bearing with the connecting rod (BA) that revolving meber (OB) front end (B point) is hinged; At this moment, the head (A) of connecting rod (BA) forms perpendicular to above-mentioned line and by the straight reciprocating motion of this line elongation line five equilibrium, and its movement locus is straight line AA '.
According to claim 1 rotation is converted into straight-line driving mechanism, it is characterized in that:
Described revolving meber (OB) is the member of single component or the rigid member of being made up of a plurality of parts.
According to claim 1 or 2 rotation is converted into straight-line driving mechanism, it is characterized in that:
Described revolving meber (OB) is equivalent to worm gear (35), and the worm-wheel shaft (38) of this worm gear (35) articulates with frame (22), and described connecting rod (BA) is exactly connecting rod (14), and the afterbody of spoke of this worm gear (35) and described connecting rod (14) (B point) is hinged.
According to claim 1 or 2 rotation is converted into straight-line driving mechanism, it is characterized in that:
Described revolving meber (OB) comprises worm gear (35) and bent axle (28), and the root of bent axle (28) is fixed on the spoke of worm gear (35), forms rigid member with worm gear (35).
According to claim 1 or 2 rotation is converted into straight-line driving mechanism, it is characterized in that:
Described bearing (40) comprises linear bearing (45) and linear axis bearing (47), linear bearing (45) comprises chute (451) and guide rail (452) again, guide rail (452) is fixed on the connecting rod (14), chute (451) is loaded on the linear axis bearing (47), and linear axis bearing (47) articulates by its pivot (471) and frame (22).
According to claim 1 or 2 rotation is converted into straight-line driving mechanism, it is characterized in that:
Also include power plant 30, these power plant comprise motor (36), worm screw (34) and worm gear (35), motor (36) is connected with worm screw (34), worm screw (34) and worm gear (35) engagement, and the root of bent axle (28) is fixed on the worm gear (35), forms rigid member with worm gear.
According to claim 3 rotation is converted into straight-line driving mechanism, it is characterized in that:
Cross slid platform (23) is installed on the connecting rod (14), and cross slid platform (23) is gone up gun rack is installed, and welding gun is installed on gun rack.
CN2009101106411A 2009-10-15 2009-10-15 Transmission mechanism for converting rotation into linear motion Pending CN102042375A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101106411A CN102042375A (en) 2009-10-15 2009-10-15 Transmission mechanism for converting rotation into linear motion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101106411A CN102042375A (en) 2009-10-15 2009-10-15 Transmission mechanism for converting rotation into linear motion

Publications (1)

Publication Number Publication Date
CN102042375A true CN102042375A (en) 2011-05-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009101106411A Pending CN102042375A (en) 2009-10-15 2009-10-15 Transmission mechanism for converting rotation into linear motion

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102912504A (en) * 2012-10-22 2013-02-06 江苏万工科技集团有限公司 Flat opening mechanism with moving pair
CN109990064A (en) * 2019-05-13 2019-07-09 西北农林科技大学 A kind of forms of motion switching mechanism
CN114955948A (en) * 2022-04-19 2022-08-30 中联重科股份有限公司 Operation platform and spray room
CN116533116A (en) * 2023-04-27 2023-08-04 江阴瑞林精密机械制造有限公司 Photovoltaic semiconductor processing device with cleaning and filtering functions

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102912504A (en) * 2012-10-22 2013-02-06 江苏万工科技集团有限公司 Flat opening mechanism with moving pair
CN109990064A (en) * 2019-05-13 2019-07-09 西北农林科技大学 A kind of forms of motion switching mechanism
CN114955948A (en) * 2022-04-19 2022-08-30 中联重科股份有限公司 Operation platform and spray room
CN114955948B (en) * 2022-04-19 2024-03-12 中联重科股份有限公司 Operating platform for spray chamber and spray chamber
CN116533116A (en) * 2023-04-27 2023-08-04 江阴瑞林精密机械制造有限公司 Photovoltaic semiconductor processing device with cleaning and filtering functions
CN116533116B (en) * 2023-04-27 2023-10-17 江阴瑞林精密机械制造有限公司 Photovoltaic semiconductor processing device with cleaning and filtering functions

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Application publication date: 20110504